-(-3) + (8-[-5+ 4(7-2) + (-3)] + 1}=
-[6+(3-8)]-{9-[-4-(-5+3)]- (-2)) =
--3-[-8-(-6)-(-3)]- 2[3+ (7-9)]] =
-2+{3+ [4+2-(-3)]-(5+8)} =
9-{6+ [5-3+ (6-2)] +8(4-7)} = -[-6+(5-1)]-{6-[9-(7+4)] +(6-13)-(-8)} =
resuelve estás operaciones ​